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| Patent GB191,413,300 | |||||
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| Number | Date | Patentee | Title | Type | |
| GB-191,413,300 | May 31, 1915 | C.W. James | Improved Mechanism for Altering the "Throw" of a Crank-pin; Applicable to Slotting, Shaping, and like Machines having a Reciprocating Motion | ||